<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[yanglijun2_的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/yanglijun2_</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; yanglijun2_]]></copyright><item><title><![CDATA[第十五周作业——高级编程技术]]></title><link>https://blog.youkuaiyun.com/yanglijun2_/article/details/80726990</link><guid>https://blog.youkuaiyun.com/yanglijun2_/article/details/80726990</guid><author>yanglijun2_</author><pubDate>Mon, 18 Jun 2018 23:27:50 +0800</pubDate><description><![CDATA[题目：导入各种数据库，生成数据集。from sklearn import datasets  
from sklearn import cross_validation  
from sklearn.naive_bayes import GaussianNB  
from sklearn.svm import SVC  
from sklearn.ensemble import RandomFor...]]></description><category></category></item><item><title><![CDATA[第十四周作业——高级编程技术]]></title><link>https://blog.youkuaiyun.com/yanglijun2_/article/details/80646042</link><guid>https://blog.youkuaiyun.com/yanglijun2_/article/details/80646042</guid><author>yanglijun2_</author><pubDate>Sun, 10 Jun 2018 23:24:00 +0800</pubDate><description><![CDATA[In [1]：%matplotlib inline

import random

import numpy as np
import scipy as sp
import pandas as pd
import matplotlib.pyplot as plt
import seaborn as sns

import statsmodels.api as sm
import statsmode...]]></description><category></category></item><item><title><![CDATA[第十三周作业——高级编程技术]]></title><link>https://blog.youkuaiyun.com/yanglijun2_/article/details/80551545</link><guid>https://blog.youkuaiyun.com/yanglijun2_/article/details/80551545</guid><author>yanglijun2_</author><pubDate>Sat, 02 Jun 2018 22:22:47 +0800</pubDate><description><![CDATA[import numpy as np  
from scipy.linalg import lstsq  
from scipy.linalg import norm  

A = np.random.randint(0,50,size=(5,5))  
b = np.random.randint(0,50,size=(5,1))  
print(&quot;A:&quot;)  
print(A)  
print(...]]></description><category></category></item><item><title><![CDATA[第十二周作业——高级编程作业]]></title><link>https://blog.youkuaiyun.com/yanglijun2_/article/details/80489477</link><guid>https://blog.youkuaiyun.com/yanglijun2_/article/details/80489477</guid><author>yanglijun2_</author><pubDate>Mon, 28 May 2018 22:32:34 +0800</pubDate><description><![CDATA[11 MatplotlibExercise 11.1:Plotting a function    plot the function f(x) = sin2(x-2)e^(-x^2)over the interval [0; 2]. Add proper axis labels, a title, etcimport numpy as np  import matplotlib . pyplot...]]></description><category></category></item><item><title><![CDATA[第十一周作业——高级编程技术]]></title><link>https://blog.youkuaiyun.com/yanglijun2_/article/details/80394273</link><guid>https://blog.youkuaiyun.com/yanglijun2_/article/details/80394273</guid><author>yanglijun2_</author><pubDate>Mon, 21 May 2018 18:19:57 +0800</pubDate><description><![CDATA[· Set matrices A，with random Gaussian entries B，a Toeplitz matrix, n = 200, m = 500import timeimport numpy as np  from scipy.linalg import toeplitz  n = 200m = 500A = np.random.normal(0,1.0,100000)A =...]]></description><category></category></item><item><title><![CDATA[第九周作业——高级编程技术]]></title><link>https://blog.youkuaiyun.com/yanglijun2_/article/details/80225491</link><guid>https://blog.youkuaiyun.com/yanglijun2_/article/details/80225491</guid><author>yanglijun2_</author><pubDate>Mon, 07 May 2018 14:41:44 +0800</pubDate><description><![CDATA[#213题目来源：https://leetcode.com/problems/house-robber-ii/description/题目分析：这是house-robber的延伸，在上次盗窃完一条街道之后，窃贼又转到了一个新的地方，这个地方的所有房屋都围成一圈。这意味着第一个房子是最后一个是紧挨着的。当然这些房屋的安全系统与上次那条街道的安全系统保持一致。现在给出一份代表每个房屋存放钱数的非负整数...]]></description><category></category></item><item><title><![CDATA[第八周作业（1,2,3）——高级编程技术]]></title><link>https://blog.youkuaiyun.com/yanglijun2_/article/details/80145757</link><guid>https://blog.youkuaiyun.com/yanglijun2_/article/details/80145757</guid><author>yanglijun2_</author><pubDate>Sun, 29 Apr 2018 23:35:46 +0800</pubDate><description><![CDATA[一、LeetCode里的【array】部分题目节选。1、#41. First Missing Positive2.#11. Container With Most Water3.#35. Search Insert Position11. Container With Most Water]]></description><category></category></item><item><title><![CDATA[第六周作业（1,2【没有】）——高级编程技术]]></title><link>https://blog.youkuaiyun.com/yanglijun2_/article/details/79922103</link><guid>https://blog.youkuaiyun.com/yanglijun2_/article/details/79922103</guid><author>yanglijun2_</author><pubDate>Fri, 13 Apr 2018 01:41:35 +0800</pubDate><description><![CDATA[一、第十一章作业。11-1city_functions.py:def city_country(city, country, population):	cityCountry = city.title() + &quot;, &quot; + country.title() 	return cityCountrytest_cities.py:import unittestfrom city_functions imp...]]></description><category></category></item><item><title><![CDATA[第五周作业（2）——高级编程技术]]></title><link>https://blog.youkuaiyun.com/yanglijun2_/article/details/79857866</link><guid>https://blog.youkuaiyun.com/yanglijun2_/article/details/79857866</guid><author>yanglijun2_</author><pubDate>Sun, 08 Apr 2018 22:26:03 +0800</pubDate><description><![CDATA[一、第十章作业节选10-1with open('learning_python.txt') as file_object:	contents = file_object.read()	print(contents)print(&quot;\n&quot;)fileName = 'learning_python.txt'with open(fileName) as file_object:	for line in fi...]]></description><category></category></item><item><title><![CDATA[第五周作业（1）——高级编程技术]]></title><link>https://blog.youkuaiyun.com/yanglijun2_/article/details/79816214</link><guid>https://blog.youkuaiyun.com/yanglijun2_/article/details/79816214</guid><author>yanglijun2_</author><pubDate>Wed, 04 Apr 2018 15:15:02 +0800</pubDate><description><![CDATA[一. 第九章作业节选9-1class Restaurant():	def __init__(self, restaurant_name, cuisine_type):		self.restaurant_name = restaurant_name		self.cuisine_type = cuisine_type	def describe_restaurant(self):		print(&quot;res...]]></description><category></category></item><item><title><![CDATA[第四周作业（1,2）——高级编程技术]]></title><link>https://blog.youkuaiyun.com/yanglijun2_/article/details/79781286</link><guid>https://blog.youkuaiyun.com/yanglijun2_/article/details/79781286</guid><author>yanglijun2_</author><pubDate>Sun, 01 Apr 2018 21:43:43 +0800</pubDate><description><![CDATA[一、第七章作业节选、7-1car = input(&quot;What kind of car would you like to rent? &quot;)print(&quot;Let me see if I can find you a &quot; + car + &quot;.&quot;)7-2numbers = input(&quot;Who many people will come to dinner? &quot;)if int(numbers) &amp;gt;...]]></description><category></category></item><item><title><![CDATA[第三周作业（2）——高级编程技术]]></title><link>https://blog.youkuaiyun.com/yanglijun2_/article/details/79652148</link><guid>https://blog.youkuaiyun.com/yanglijun2_/article/details/79652148</guid><author>yanglijun2_</author><pubDate>Thu, 22 Mar 2018 13:43:19 +0800</pubDate><description><![CDATA[6-1friend = {'first_name': 'Jams', 'last_name': 'Bob', 'age': 18, 'city': 'Wuhan'}print(friend['first_name'])print(friend['last_name'])print(friend['age'])print(friend['city'])6-2friends_love = {	'Xu ...]]></description><category></category></item><item><title><![CDATA[第三周作业（1）——高级编程技术]]></title><link>https://blog.youkuaiyun.com/yanglijun2_/article/details/79624312</link><guid>https://blog.youkuaiyun.com/yanglijun2_/article/details/79624312</guid><author>yanglijun2_</author><pubDate>Tue, 20 Mar 2018 14:57:37 +0800</pubDate><description><![CDATA[5-2str1 = 'abc'str2 = 'ABC'print(str1 == str2)print(str1.upper() == str2)print(&quot;\n&quot;)print(str1 == str2.lower())print(&quot;\n&quot;)number1 = 2number2 = 3print(number1 == number2)print(number1 != number2)print(...]]></description><category></category></item><item><title><![CDATA[第二周作业（2）——高级编程技术]]></title><link>https://blog.youkuaiyun.com/yanglijun2_/article/details/79566219</link><guid>https://blog.youkuaiyun.com/yanglijun2_/article/details/79566219</guid><author>yanglijun2_</author><pubDate>Thu, 15 Mar 2018 13:09:36 +0800</pubDate><description><![CDATA[注：上两次写的作业没有贴上代码，这一次贴上，以后会注意的。一. 4-1至4-15的作业节选4-1pizza = ['pepperoni pizza', 'seafood pizza', 'chicken pizza']for name in pizza:	print(&quot;I like &quot; + name + &quot;.\n&quot;)print(&quot;I really love pizza!&quot;)4-2animals =...]]></description><category></category></item><item><title><![CDATA[第二周作业（1）——高级编程技术]]></title><link>https://blog.youkuaiyun.com/yanglijun2_/article/details/79531930</link><guid>https://blog.youkuaiyun.com/yanglijun2_/article/details/79531930</guid><author>yanglijun2_</author><pubDate>Mon, 12 Mar 2018 20:45:16 +0800</pubDate><description><![CDATA[一. 3-1至3-11作业节选3-13-23-33-43-53-63-7]]></description><category></category></item><item><title><![CDATA[第一周作业——高级编程技术]]></title><link>https://blog.youkuaiyun.com/yanglijun2_/article/details/79517643</link><guid>https://blog.youkuaiyun.com/yanglijun2_/article/details/79517643</guid><author>yanglijun2_</author><pubDate>Sun, 11 Mar 2018 17:22:10 +0800</pubDate><description><![CDATA[ 一. 关于Python主页的发现和收获      首先，Python主页主要有六个大块，分别是它的大致形象，PSF，Docs，PyPl, Jobs， Community，很简洁明了的将这个整体分为相交相融的六大部分，很久没看过Python的主页了，看上去真的美化了很多。       最让我印象深刻的是它的主页轮番滚动的几幅代码图片，有简单明了的算术问题，有关于循环的，有一个斐波拉契数列的应用，有...]]></description><category></category></item></channel></rss>